size = 2;
cBuf[0] = 0x8f; // Reset FIFO command
cBuf[1] = 0x91; // send with CRC
cBuf[2] = 0x3d; // write continuous from register 1D
cBuf[3] = (char)size>>8; // Data for register 1D, data length
cBuf[4] = (char)size<<4; // Data for register 1E
cBuf[5] = 0x02; //0x02; // ISO15693 flag with Option flag set
cBuf[6] = 0x2B; // GetSystemInfo